Stump-puller



2 sheew-sneet 1.

(No Model.)

J M. MOORE.

STUMP FULLER.

No. 390,890. Patented Oct. 2, 1888.

llVVE/VTOR ATTORNEY N. PETERS, PhnlnLitlwgnphur, Waihinglcn. DJ;

(No Model.)

. K 2 Shets-Sheet 2. J. M. MOORE.

STUMP PUL LER.

Patented Oct. 2,

INVENTOR A TTOl-NVEY N. PETERS. phowmms p cr, Walhingmn, 04 C.

JAMES M. MOORE, OF UNION CITY, TENNESSEE.

STUMP PULLER.

fiiPECIEICATION forming part of Letters Application filed May 4, 1888.Serial No. 272,795.

To all whom it may concern.-

Be it known that I, JAMES M. Moons, of Union City, in the county ofObion and State of Tennessee, have invented a new and useful Improvementin Stump-Pullers, of which the following is a full, clear,and exactdescription.

The main object of this invention is to pro vide a stump-puller whereby,with the application of a constant power, the effective force exerted touproot the stump will be greatest and the speed the slowest at thecommencement of the work, or when the resistance is greatest, and as thework progresses and the resistance correspondingly lessens the effectiveforce will be correspondingly decreased and the speed increased, so thatthe work will be completed in the shortest time possible.

Further objects are to provide for the ready adj ustability of theeffective force in accordance with the resistance to be overcome, and tosecure greater strength, efficiency, and port ability than have beenheretofore generally at tained in devices of this character.

The invention consists of various novel features of construction andcombinations of parts, substantially as hereinafter fully described, andas distinctly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a perspective View of a stumppuller embodying my invention,and Fig. 2 is a sectional side elevation of the said stumppuller.

The stump-puller shown is mounted to travel on two parallel sills, A B,of which the sill A is much the longer, and which are provided withlongitudinal runners A B, respectively.

On the rear end of the main sill A is erected a rigid four -leggedderrick, O, the top of which is connected to the respective end of theshort sill B by brace-bars D, the ends of which are jointed loosely tothe said derrick and sill B, so that either sill may be adjusted withoutdisturbing the other. In the present instance the brace-bars D areconnected at their upper ends to the derrick by hooks D and eyes D andat their lower ends by screweyes D and staples or n-shaped bolts D*.

On the short sill B are erected rigid stand- Patent No. 390.390, datedGotcha: 2, 1888.

(No model.)

ard-bearings E, to and between which, as a fulcrum, is pivoted one endof a re-enforced beam-lever, F, the other end of which is suspended bypower-multiplying hoisting'tackle G, running over suitable pulley-blocksfrom the top and between the legs of the derrick G; and to metallic capsH, fixed to opposite ends of the bcam lever F, are rigidly secured thecorresponding ends of a pair of stay-rods, I, which extend along thebottom of the beamlever, and between which and the said beamlever isarranged a spreader, J. A block, T, from which is suspended by a strap,T, a hook or fastening device, T, to which the stump is to be attachedby chains or in any other suitable way, is mounted to slide lengthwiseon the top of the lever F, and is connected by a rod, T, with acrank'arm, T", mounted to turn on the bearings E.

The construction and arrangement are such that the fastening'block T canbe easily adjusted to any desired distance from the fulcrum of thelever, according to the resistance which the stump will probably offer,and by means of the hoisting-tackle G the free end of the lever can beraised so as to draw out the stump therewith,

The draw-strand K of the tackle G is arranged to run over a pulley, L,journaled to the top of the derrick, into the peripheral groove M of acompound drum, N, which groove is so adapted to the size of the strand Kthat the latter will, when the compound drum is rotated, be compelled tocoil upon itself in a single layer, so that the effective force willdecrease and the speed of winding increase as said groove becomes full.The compound drum N is also provided with another singlewidth groove, 0,in which is arranged to wind oppositely to the draw-strand K anotherrope, P, which is guided along the top of the sill A to the drum Q of aWindlass, Q, having a narrow groove, and which is arranged on the rearend of the sill A, and is provided with an operating-sweep, S, which maybe turned by animal power.

The arrangement is such that the groove 0 of the compound drum N will befull and the ered for connection to the stump,and thus when the WindlassQ is worked to revolve the compound drum by unwinding the operating-ropegroove M empty when the beam-lever is low 1 the latter will exertthcgreatest leverage on the drum and the draw-strand K, as beforestated, the least, so that the greatest force will be exerted to drawthe stump at starting, and as the stump is raised audits resistanceconse quently decreased the compound drum will wind up the strand K, andthus draw the stump faster, the operating-rope P acting on a smallereffective diameter as it uncoils.

The stump-puller may be readily transported from place to place byattaching dral't devices to the front ends of both sills A B.

Having thus fully described myinvention, I claim as new and desire tosecure by Let ters Patent- 1. In astump-puller, the combinati0n,with themain sill A,having a derrick,C, at its inner I end, the verticalcompound drum N, having single-width grooves M O, the drum being of lessdiameter through the groove 0 than through groove M, and a horizontaldrum, Q, at the outer end of the sill A, provided with a single-widthgroove, Q, of the windlassstrand P, approximately equal in diameter tothe width 01' the grooves M Q and passing arouud'the same, and thehoisting or stumppulling strand K, connected to the top of the derrick,passing over pulleys thereon, thence around the groove 0 in a directionopposite to the strand P, said strand K being approximately equal indiameter to the width of the groove 0, and the stumplastener operatedfrom the strand 1 substantially as set forth.

2. The combination, in a stumppuller, of

two sills, a derrick on one, a bearing on the 5 other, a beam-leverfulcrumed to said bearing, beani-lever-hoistingmechanism on the derrick,an adjustable block on the beam-lever, a strap, and a stump-attachingdevice sus pended from said block, substantially as set forth.

3. The combination, in a stump-puller, of sills having parallel runners,a derrick on one sill, a standard-bearing on the other sill, adraft-beam lever fulcrumed to the standardbearing, leverhoisting tackleon the derrick, and a brace jointed loosely at its respective ends tothe top of the derrick and to the other sill, substantially asdescribed.

4. The combinatiomwith the base and standards, of a crank-shaftjournaledin said standards, a vertically-swinging beam-lever fulcrumed on saidshalt between the standards, a sliding block or carrier on the beam, arod connecting the said block with the crank-shaft for moving it alongthe beam-lever, and a stump-fastener carried by said block,substantially as set forth.

JAMES M. MOORE.

Vitncsscs:

R. P. EVANS, H. N. SHERRILL.

